2133911 has 4 divisors (see below), whose sum is σ = 2298072. Its totient is φ = 1969752.

The previous prime is 2133899. The next prime is 2133949. The reversal of 2133911 is 1193312.

2133911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2133911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82061 + ... + 82086.

It is an arithmetic number, because the mean of its divisors is an integer number (574518).

2^2133911 is an apocalyptic number.

2133911 is a deficient number, since it is larger than the sum of its proper divisors (164161).

2133911 is a wasteful number, since it uses less digits than its factorization.

2133911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164160.

The product of its digits is 162, while the sum is 20.

The square root of 2133911 is about 1460.7912239605. The cubic root of 2133911 is about 128.7435362954.

The spelling of 2133911 in words is "two million, one hundred thirty-three thousand, nine hundred eleven".